public class ReverseArrayIterator<T extends Item> extends Object implements UnfailingIterator<T>, ReversibleIterator<T>, LookaheadIterator<T>, LastPositionFinder<T>
GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD| Constructor and Description |
|---|
ReverseArrayIterator(T[] items,
int start,
int end)
Create an iterator a slice of an array
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| Modifier and Type | Method and Description |
|---|---|
void |
close()
Close the iterator.
|
T |
current()
Get the current item in the sequence.
|
ReverseArrayIterator<T> |
getAnother()
Get another iterator over the same sequence of items, positioned at the
start of the sequence.
|
int |
getLength()
Get the last position (that is, the number of items in the sequence).
|
int |
getProperties()
Get properties of this iterator, as a bit-significant integer.
|
SequenceIterator<T> |
getReverseIterator()
Get an iterator that processes the same items in reverse order.
|
boolean |
hasNext()
Determine whether there are more items to come.
|
T |
next()
Get the next item in the sequence.
|
int |
position()
Get the current position
|
public ReverseArrayIterator(T[] items, int start, int end)
items - The array of itemsstart - The first item in the array to be be used (this will be the last
one in the resulting iteration). Zero-based.end - The item after the last one in the array to be used (this will be the
first one to be returned by the iterator). Zero-based.public boolean hasNext()
hasNext in interface LookaheadIterator<T extends Item>public T next()
UnfailingIteratornext in interface SequenceIterator<T extends Item>next in interface UnfailingIterator<T extends Item>public T current()
UnfailingIteratorcurrent in interface SequenceIterator<T extends Item>current in interface UnfailingIterator<T extends Item>public int position()
UnfailingIteratorposition in interface SequenceIterator<T extends Item>position in interface UnfailingIterator<T extends Item>public int getLength()
LastPositionFinderSequenceIterator.LAST_POSITION_FINDERgetLength in interface LastPositionFinder<T extends Item>public void close()
SequenceIterator(Currently, closing an iterator is important only when the data is being "pushed" in another thread. Closing the iterator terminates that thread and means that it needs to do no additional work. Indeed, failing to close the iterator may cause the push thread to hang waiting for the buffer to be emptied.)
close in interface SequenceIterator<T extends Item>public ReverseArrayIterator<T> getAnother()
UnfailingIteratorgetAnother in interface SequenceIterator<T extends Item>getAnother in interface UnfailingIterator<T extends Item>public int getProperties()
getProperties in interface SequenceIterator<T extends Item>SequenceIterator.GROUNDED, SequenceIterator.LAST_POSITION_FINDER,
and SequenceIterator.LOOKAHEAD. It is always
acceptable to return the value zero, indicating that there are no known special properties.
It is acceptable for the properties of the iterator to change depending on its state.public SequenceIterator<T> getReverseIterator()
getReverseIterator in interface ReversibleIterator<T extends Item>Copyright (c) 2004-2013 Saxonica Limited. All rights reserved.